Pablo
Picasso: Nu au Plateau de Sculpteur'Nude, Green leaves and
Bust also known as Bust Nude with Sculptor’s Turntable, 1932Picasso's
muse, mistress, and frequent subject, Marie-Thérèse Walter syntribating
and climaxing.May
4, 2010, Christies,
New York, Rockefeller Plaza, sold for a record $106,482,500, breaking
the previous world record for any work of art sold at auction, video

Among both males and females, the peak age at reporting having
masturbated in the past day (either today or yesterday) was age 18,
with 51 percent of boys and 36 percent of girls concurring. After
age 18, however, notable drop-offs are evident: 31 percent of
19-year-old boys and 18 percent of 19-year-old girls report
masturbating in the past day.

The
two most obvious things known about masturbation patterns are its
associations with age and sex. Young adult men in their mid-20’s and
30s are the most likely to report masturbation in both the past year
and the previous 90 days (Reece et al., 2010; Richters et al., 2003).
Rates of masturbation increase during adolescence, peak in young
adulthood, and then decrease throughout the rest of the life course.
(Regnerus M et al., 2014)

Among
20-24 year olds in the 2009 National Survey of Sexual Health and
Behavior, 83 percent of men and 64 percent of women report
solo-masturbation in the past year, which increases to 84 percent of
men and 72 percent of women ages 25-29, and dips slightly to 80 percent
and 63 percent, respectively, among 30-39 year olds (Herbenick et al.,
2010a).

95
percent of men and 87 percent of women with at least some graduate
education experience an orgasm every time they masturbate, while in
comparison only 60 percent of men and 46 percent of women without a
high school degree said the same (Laumann et al., 1994).